Bike jump

Claim 1

A portable competition jump for imparting variable jumping height and distance to a wheeled cycle moving at a selected speed thereover, comprising: a generally wedge shaped body having an upwardly inclined top surface with a selected width forming a lower entrance zone at the lower portion of the top surface, a jump departure zone at the upper portion of the top surface, the jump departure zone being defined by side edges upwardly and forwardly converging toward an optimum axis of travel of the top surface and reaching a maximum height and maximum forward extension at said axis, wherein said top surface includes visual guide marks leading to the point of convergence of the departure zone; and whereby a cycle leaving the jump departure zone at the point of convergence of said side edges with said axis will achieve maximum forward leap distance from the point of convergence for a selected cycle speed.